package main

import (
	"fmt"
	"math"
)

func getBinary(num int) string {
	res := ""
	for i:=63; i>=0; i-- {
		if num & (1 << i) == 0 {
			res += "0"
		} else {
			res += "1"
		}
	}
	return 	res
}

func main () {
	fmt.Println(getBinary(math.MinInt64))
	//fmt.Println(getBinary(1))
}
